Rhenium complexes in homogeneous hydrogen evolution

This review is focused on the photocatalytic properties of the Re(I) compounds in the reduction of H+ and their use in solar energy conversion. Different systems are discussed in terms of the photosensitizer - usually containing the core [ReX(CO)(3)diimine](+) - and mechanistic details are provided. The effect of the axial ligand and coordination of solvent water or TEOA on hydrogen evolution rates is also discussed. Supramolecular systems that mimic enzymes by combining both the photsenzitizer and the catalyst are also presented. (C) 2014 Elsevier B.V. All rights reserved.